dict01 = {"Name": "Runoob", "Age": 7, "Class": "First"}

print("dict01['Name']: ", dict01["Name"])
print("dict01['Age']: ", dict01["Age"])
print("======")
# 字典里key不存在，会报错
# print("dict01['Alice']: ", dict01['Alice'])

dict01["Name"] = "zhangsan"
dict01["Age"] = 8
print("dict01['Name']: ", dict01["Name"])
print("dict01['Age']: ", dict01["Age"])
